JAN13
High-power LED torch
Here you can see yet another Joule thief circuit. It is powered from a single 1.2V (1.5V) battery and it powers 4 high efficiency LEDs.
What is interesting about this circuit is that a coil which is necessary for Joule Thief is actually wound on a battery case!
© qs
[ Source: qs ]
Jaka LED baterija na 1,5V
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